Cell wall: strong; supporting layer around the cell membrane in plant cells
Answer is A. restriction enzyme
In biology ,Restriction enzyme is known as a scissor.
For the environmental risk, it is much better to prevent pollution than to deal with it after it has already been made. When you deal with the pollution, it is hard to say that you can eliminate completely. So, prevention is the first strategy.
A plastic bag so that it can be cleanly put in
